PPM/EC Meter (4-in-1 TDS Tester) from Aquager Technologies puts professional-grade water analysis in your pocket — measure TDS, EC, and temperature in seconds to dial in nutrient strength and protect your plants from over- or under-feeding.
4-in-1 measurement: Reads TDS (ppm), EC (μS/cm), and temperature (°C/°F) in a single dip.